PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/18-21:13:10
G08     320.3          11.1               -8.7 +/-   32.85     -23.6 +/-   32.85  0.030 / 0.040
G10     313.4          56.8                8.0 +/-    1.85       9.3 +/-    1.85  0.030 / 0.040
G14     212.7          17.2               14.8 +/-    3.36      34.8 +/-    3.36  0.140 / 0.350
G15     45.6           20.5                7.7 +/-    2.17      16.7 +/-    2.17  0.140 / 0.290
G20     15.6           63.7                8.7 +/-    0.53       9.6 +/-    0.53  0.180 / 0.190
G21     117.2          68.6               10.8 +/-    1.04      11.5 +/-    1.04  0.100 / 0.210
G24     89.5           29.5               10.9 +/-    1.15      19.4 +/-    1.15  0.230 / 0.310
G27     290.8          37.2                5.9 +/-    2.23       9.1 +/-    2.23  0.220 / 0.340
G32     214.1          41.0               11.8 +/-    1.37      16.9 +/-    1.37  0.060 / 0.090